Devil May Cry 2 walkthrough/DM16

Walkthrough
Before you can take the elevator in front of you, you must kill all of the enemies in this room. On the elevator, you will be attacked by several enemies. This is a good place to get a stylish rating because of the close quarters. At the bottom, smash all of the pots to obtain red orbs, and go through the door at the end of the path. Follow the path until you reach another door and go through it. Here you will have to reach the end of the room without touching any of the red eyeballs. Two will come at you from the middle, then 2 on the side, and then 2 in the middle again. The best thing to do is to hide in the small alcove in the corner until the ones on the side roll by, and then go forward again. Now there will be 4 coming at you from all different directions. The best thing to do is to double jump over them. If any of them touch you, you will have to fight 2 Savage Golems, and then try again. You should now be at the back wall. Go through the door here to find another secret room, then jump up to the balcony. Take the Sacrilege, and explore the balcony to find a blue orb piece. Put the Sacrilege in the door and head back out. Ignore the Pyromancers and follow the path until it splits in 2. Take the one in front of Dante, and go through the door here. You will now have to fight Bolverk again. When he is dead, take the sacrilege and exit the room. Follow the hallway, and there should be a pathway to your right lined with red orbs. Go through the door, and kill all of the enemies to receive the sacrilege. Exit the way you came in, and head back down the hall. Turn to Dante's left, back toward where you got the second Sacrilege. Turns left now and go through the new door. Smash the orb, and kill all of the Blood Goats to receive the Frost Heart. Go back to the room where you found the third Sacrilege, and take the elevator down. This time you will be attacked by harder enemies in the elevator, but they shouldn't give you too much trouble. Go through the door, and begin the boss fight with Trismagia.

Boss: Trismagia
To defeat Trismagia, wait for it to split in three, then begin shooting all heads. These heads are each one of a color, and each one has its color and elements: To defeat Trismagia, you must discover which head is the true one, by shooting them from where you stand. Keep switching your targets, until one of the heads feels the pain and loses HP. When the heads get too close, get away quickly, to avoid their attacks. Their final attack is to regroup into one again, and shoot a mega blast from all mouths. Don't be tricked so easily, because this attack does not take the whole area (be careful when its life is low, because from here on, the Mega Blast does, sometimes, take the whole area). So look for a safe spot in the arena to escape. Then repeat the whole strategy to defeat it.
 * The Blue, happy face attacks with lightning balls from afar, and thunder rings when it's close.
 * The White, sad face attacks with ice balls or/and ice pillars from afar, and an icy cloud at close range.
 * The Red, angry face attacks with fireballs from afar, and explosions at close range.

An alternate strategy is to "hit and run" when Trismagia splits into 3, and keep doing so until he reunites again into a sole head, as even if he attacks with all the 3 elements at once in this phase, it is to note that he also takes more damage while united than when separated. DT-firearms combo will damage Trismagia for considerably more damage.